html,
body {
  background-color: gray;

  .title {
    background-color: orange;
  }

  .test1 {
    width: 200px;
    height: 200px;
    background-repeat: no-repeat;
    background-image: url('../img/react.jpg');
    background-size: 100% 100%;
    display: flex;
  }

  .test2 {
    width: 200px;
    height: 200px;
    background-repeat: no-repeat;
    background-image: url('../img/vue.png');
    background-size: 100% 100%;
  }
}
